Use GNU style for metasyntactic variables in gdb

I searched for other spots that did not use the GNU style for
metasyntactic syntactic variables.  This patch fixes most of the ones
I found in gdb proper.  There are a few remaining in MI, but I was
unsure whether those should be touched.

gdb/ChangeLog
2018-09-16  Tom Tromey  <tom@tromey.com>

	* top.c (new_ui_command): Use GNU style for metasyntactic
	variables.
	* breakpoint.c (stopat_command): Use GNU style for metasyntactic
	variables.
	* maint.c (maintenance_translate_address): Remove "<>" around
	text.
	* interps.c (interpreter_exec_cmd): Use GNU style for
	metasyntactic variables.
	* nto-procfs.c (nto_procfs_target_info): Use GNU style for
	metasyntactic variables.
	* tracepoint.c (tfind_range_command): Use GNU style for
	metasyntactic variables.
	(tfind_outside_command): Likewise.
	(_initialize_tracepoint): Likewise.
	* remote.c (extended_remote_target::create_inferior): Use GNU
	style for metasyntactic variables.
	* sparc64-tdep.c (adi_examine_command): Use GNU style for
	metasyntactic variables.
	(adi_assign_command): Likewise.

gdb/testsuite/ChangeLog
2018-09-16  Tom Tromey  <tom@tromey.com>

	* gdb.base/new-ui.exp (do_execution_tests): Update.
	* gdb.base/dbx.exp (test_breakpoints): Update.

12 files changed, 48 insertions, 18 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 095c6b5..0330cd9 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,27 @@
 2018-09-16  Tom Tromey  <tom@tromey.com>
 
+	* top.c (new_ui_command): Use GNU style for metasyntactic
+	variables.
+	* breakpoint.c (stopat_command): Use GNU style for metasyntactic
+	variables.
+	* maint.c (maintenance_translate_address): Remove "<>" around
+	text.
+	* interps.c (interpreter_exec_cmd): Use GNU style for
+	metasyntactic variables.
+	* nto-procfs.c (nto_procfs_target_info): Use GNU style for
+	metasyntactic variables.
+	* tracepoint.c (tfind_range_command): Use GNU style for
+	metasyntactic variables.
+	(tfind_outside_command): Likewise.
+	(_initialize_tracepoint): Likewise.
+	* remote.c (extended_remote_target::create_inferior): Use GNU
+	style for metasyntactic variables.
+	* sparc64-tdep.c (adi_examine_command): Use GNU style for
+	metasyntactic variables.
+	(adi_assign_command): Likewise.
+
+2018-09-16  Tom Tromey  <tom@tromey.com>
+
 	* disasm.c (show_disassembler_options_sfunc): Use GNU style for
 	metasyntactic variables.  Print message if no disassembler options
 	are available.
diff --git a/gdb/breakpoint.c b/gdb/breakpoint.c
index 4e7dac5..85cb7d7 100644
--- a/gdb/breakpoint.c
+++ b/gdb/breakpoint.c
@@ -9591,7 +9591,7 @@ stopat_command (const char *arg, int from_tty)
     }
 
   if (badInput)
-    printf_filtered (_("Usage: stop at <line>\n"));
+    printf_filtered (_("Usage: stop at LINE\n"));
   else
     break_command_1 (arg, 0, from_tty);
 }
diff --git a/gdb/interps.c b/gdb/interps.c
index 789ae86..6fe4c74 100644
--- a/gdb/interps.c
+++ b/gdb/interps.c
@@ -375,7 +375,7 @@ interpreter_exec_cmd (const char *args, int from_tty)
   nrules = prules.count ();
 
   if (nrules < 2)
-    error (_("usage: interpreter-exec <interpreter> [ <command> ... ]"));
+    error (_("Usage: interpreter-exec INTERPRETER [ COMMAND... ]"));
 
   old_interp = ui_interp->current_interpreter;
 
diff --git a/gdb/maint.c b/gdb/maint.c
index 5d4701c..19db8a8 100644
--- a/gdb/maint.c
+++ b/gdb/maint.c
@@ -444,7 +444,7 @@ maintenance_translate_address (const char *arg, int from_tty)
       while (*p && !isspace (*p))	/* Find end of section name.  */
 	p++;
       if (*p == '\000')		/* End of command?  */
-	error (_("Need to specify <section-name> and <address>"));
+	error (_("Need to specify section name and address"));
 
       int arg_len = p - arg;
       p = skip_spaces (p + 1);
diff --git a/gdb/nto-procfs.c b/gdb/nto-procfs.c
index 54357af..ed2ef37 100644
--- a/gdb/nto-procfs.c
+++ b/gdb/nto-procfs.c
@@ -143,7 +143,7 @@ class nto_procfs_target_native final : public nto_procfs_target
 static const target_info nto_procfs_target_info = {
   "procfs",
   N_("QNX Neutrino local or remote process"),
-  N_("QNX Neutrino process.  target procfs <node>")
+  N_("QNX Neutrino process.  target procfs NODE")
 };
 
 struct nto_procfs_target_procfs final : public nto_procfs_target
diff --git a/gdb/remote.c b/gdb/remote.c
index 3b19da7..39b3823 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -10158,7 +10158,7 @@ Remote replied unexpectedly while setting startup-with-shell: %s"),
       if (remote_exec_file[0])
 	error (_("Remote target does not support \"set remote exec-file\""));
       if (!args.empty ())
-	error (_("Remote target does not support \"set args\" or run <ARGS>"));
+	error (_("Remote target does not support \"set args\" or run ARGS"));
 
       /* Fall back to "R".  */
       extended_remote_restart ();
diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c
index f25f554..b1ee6c1 100644
--- a/gdb/sparc64-tdep.c
+++ b/gdb/sparc64-tdep.c
@@ -449,7 +449,7 @@ do_assign (CORE_ADDR start, size_t bcnt, int version)
 
    Command syntax:
 
-     adi (examine|x)/count <addr> */
+     adi (examine|x)[/COUNT] [ADDR] */
 
 static void
 adi_examine_command (const char *args, int from_tty)
@@ -473,7 +473,7 @@ adi_examine_command (const char *args, int from_tty)
   if (p != 0 && *p != 0)
     next_address = parse_and_eval_address (p);
   if (!cnt || !next_address)
-    error (_("Usage: adi examine|x[/count] <addr>"));
+    error (_("Usage: adi examine|x[/COUNT] [ADDR]"));
 
   do_examine (next_address, cnt);
 }
@@ -482,11 +482,14 @@ adi_examine_command (const char *args, int from_tty)
 
    Command syntax:
 
-     adi (assign|a)/count <addr> = <version>  */
+     adi (assign|a)[/COUNT] ADDR = VERSION  */
 
 static void
 adi_assign_command (const char *args, int from_tty)
 {
+  static const char *adi_usage
+    = N_("Usage: adi assign|a[/COUNT] ADDR = VERSION");
+
   /* make sure program is active and adi is available */
   if (!target_has_execution)
     error (_("ADI command requires a live process/thread"));
@@ -496,13 +499,13 @@ adi_assign_command (const char *args, int from_tty)
 
   const char *exp = args;
   if (exp == 0)
-    error_no_arg (_("Usage: adi assign|a[/count] <addr> = <version>"));
+    error_no_arg (_(adi_usage));
 
   char *q = (char *) strchr (exp, '=');
   if (q)
     *q++ = 0;
   else
-    error (_("Usage: adi assign|a[/count] <addr> = <version>"));
+    error ("%s", _(adi_usage));
 
   size_t cnt = 1;
   const char *p = args;
@@ -516,7 +519,7 @@ adi_assign_command (const char *args, int from_tty)
   if (p != 0 && *p != 0)
     next_address = parse_and_eval_address (p);
   else
-    error (_("Usage: adi assign|a[/count] <addr> = <version>"));
+    error ("%s", _(adi_usage));
 
   int version = 0;
   if (q != NULL)           /* parse version tag */
diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog
index 8adafd6..02aeb04 100644
--- a/gdb/testsuite/ChangeLog
+++ b/gdb/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-09-16  Tom Tromey  <tom@tromey.com>
+
+	* gdb.base/new-ui.exp (do_execution_tests): Update.
+	* gdb.base/dbx.exp (test_breakpoints): Update.
+
 2018-09-14  Alan Hayward  <alan.hayward@arm.com>
 
 	* lib/gdb.exp (gdb_simple_compile): Add proc.
diff --git a/gdb/testsuite/gdb.base/dbx.exp b/gdb/testsuite/gdb.base/dbx.exp
index 40e0238..688fcbe 100644
--- a/gdb/testsuite/gdb.base/dbx.exp
+++ b/gdb/testsuite/gdb.base/dbx.exp
@@ -234,7 +234,7 @@ proc test_breakpoints { } {
     set stop_line [gdb_get_line_number "stop-at-call"]
     gdb_test "stop at average.c:$stop_line" "Breakpoint.*at.*: file.*average\.c, line $stop_line.*"
     gdb_test "stop in average.c:$stop_line" "Usage: stop in <function . address>"
-    gdb_test "stop at main" "Usage: stop at <line>"
+    gdb_test "stop at main" "Usage: stop at LINE"
 }
 
 #
diff --git a/gdb/testsuite/gdb.base/new-ui.exp b/gdb/testsuite/gdb.base/new-ui.exp
index ec15e22..36b7ff2 100644
--- a/gdb/testsuite/gdb.base/new-ui.exp
+++ b/gdb/testsuite/gdb.base/new-ui.exp
@@ -87,7 +87,7 @@ proc_with_prefix do_test {} {
     }
 
     gdb_test "new-ui" \
-	"usage: new-ui <interpreter> <tty>" \
+	"Usage: new-ui INTERPRETER TTY" \
 	"new-ui without arguments"
 
     set test "new-ui does not repeat"
diff --git a/gdb/top.c b/gdb/top.c
index 470276e..0a4d36c 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -338,7 +338,7 @@ new_ui_command (const char *args, int from_tty)
   argc = argv.count ();
 
   if (argc < 2)
-    error (_("usage: new-ui <interpreter> <tty>"));
+    error (_("Usage: new-ui INTERPRETER TTY"));
 
   interpreter_name = argv[0];
   tty_name = argv[1];
diff --git a/gdb/tracepoint.c b/gdb/tracepoint.c
index a96f56a..bb5a850 100644
--- a/gdb/tracepoint.c
+++ b/gdb/tracepoint.c
@@ -2427,7 +2427,7 @@ tfind_range_command (const char *args, int from_tty)
 
   if (args == 0 || *args == 0)
     { /* XXX FIXME: what should default behavior be?  */
-      printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
+      printf_filtered ("Usage: tfind range STARTADDR, ENDADDR\n");
       return;
     }
 
@@ -2461,7 +2461,7 @@ tfind_outside_command (const char *args, int from_tty)
 
   if (args == 0 || *args == 0)
     { /* XXX FIXME: what should default behavior be?  */
-      printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
+      printf_filtered ("Usage: tfind outside STARTADDR, ENDADDR\n");
       return;
     }
 
@@ -4031,12 +4031,12 @@ No argument means forward by one frame; '-' means backward by one frame."),
 
   add_cmd ("outside", class_trace, tfind_outside_command, _("\
 Select a trace frame whose PC is outside the given range (exclusive).\n\
-Usage: tfind outside addr1, addr2"),
+Usage: tfind outside ADDR1, ADDR2"),
 	   &tfindlist);
 
   add_cmd ("range", class_trace, tfind_range_command, _("\
 Select a trace frame whose PC is in the given range (inclusive).\n\
-Usage: tfind range addr1,addr2"),
+Usage: tfind range ADDR1, ADDR2"),
 	   &tfindlist);
 
   add_cmd ("line", class_trace, tfind_line_command, _("\